280 Annals Entomological Society of America [Vol. VIII, 
shorter, from the first stripe to the base of the marginal vein, the latter 
pallid except at base. Wings long. Caudal wings dusky at tip, with 
about a dozen lines of discal cilia. First two tarsal joints long (middle 
and hind legs). Funicle 1 large, a third longer than wide, 2 subquadrate. 
Flagellum covered with coarse hairs and stout spicules. Pedicel oval. 
From two females collected at San Rafael, Jicoltepec, 
Mexico. 
Type: “Catalogue -No. 19376, UU. SueN. M-,a4. female onma 
tag and a slide with the head, a pair of wings and the middle and 
hind tibie. 
There are no bristles on the scutellum. Body naked. 
Submarginal vein with six long bristles. 
2. Genus Plagiomerus Crawford. 
This genus bears two erect or semi-erect, slender clusters of black 
hairs at the apex of the scutellum. Comys cyanea Ashmead belongs 
here (identified by P. H. Timberlake) and differs from the genotype in 
having funicles 3-4 white, the axilla rather more separated, the scutum 
apparently more hairy. Yet the two are much alike otherwise. In 
Plagiomerus diaspidis Crawford, the mandibles are quadridentate. 
3. Chalcaspis arizonensis new species. 
Female: Length, 1.50 mm. Short and broad. 
Very similar to the genotype, differing notably in that the legs are 
all metallic green except the tarsi and tips of the middle tibize which are 
reddish like the scape. Antennz reddish except the bulb of scape and 
the pedicel which are metallic dark green, the club, however, sometimes 
darker. 
The generic description of Chalcaspis is about correct. Head 
lenticular. Flagellum clavate and with a distinct ring-joint, the 
funicle joints all much wider than long, 6 largest; club enlarged and as 
long as the funicle, obliquely truncate from joint 2. Scape long and 
slender; pedicel somewhat longer than wide. Tegulze large. Scutum 
much wider than long. Axille separated by a rather long median suture. 
Marginal vein somewhat longer than wide but not against the costal 
margin (thus in a sense absent). Mandibles strongly bidentate. Hind 
wings short and broad. The body 1s finely scaly between the punctures. 
Head wider than the thorax. The fore wing in both species is rather 
deeply infuscated out to the marginal vein. Compared with type of 
genotype. 
Described from three females on tags in U. S. N. M. 
(labelled? “Santa. Rita: Mits:;.“Anz., 105 “60> Hubbardesade 
Schwarz’’). 
Type: Catalogue No. 19377, U.S. N. M., one of the above 
on a tag plus slide with wings and head. Other two females 
with the same number as paratypes. 
